Padlock.



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EVAN J. SHIPMAN, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SARGENT & COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

PADLOCK.

Specification of Letters Patent.

Patented Dec. 4t, 1217.

Application filed March 31, 1914. Serial N 0. 828,516.

To all whom it may concern:

Be it known that I, EVAN J. SI-IIPMAN, a citizen of the United States, residing in New Haven, county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Padlocks, of which the following is a full, clear, and exact description.

This invention relates to padlocks, and more particularly to registering padlocks intended to facilitate the detection of thefts. My improvements are more especially applicable to padlocks in which a shackle is adapted to be secured and released by pin tumbler lock mechanism, and they are also primarily intended for use with padlocks of the sliding shackle type, but in the broader aspects of the invention these features are immaterial.

@ne of the primary objects of the invention is the provision of a registering padlock, in which the actuation of the registering mechanism takes place as a result of the movement of the shackle, for which purpose the shackle and registering mechanism have a direct connection with each other in dependent of the shackle locking mechanism. It is also proposed to furnish a padlock in which the shackle actuates the registering mechanism when such shackle is moved into its closed or locked position. By my improvements, the construction of the padlock can be made qulte slmple, and yet the registering or counting mechanism may have such a number of wheels, or counters, as to necessitate a large number of actuations, after the padlock has been opened, to restore the number which appeared on the padlock prior to such opening of the same.

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing,

Figure l is a front elevation of a padlock embodying my improvements, with the shackle open,

Fig. 2 is a similar view, with the shackle closed.

Fig. 3 is a view similar to Fig. 2, with a portion of the case shown in section.

Fig. 4 is a view similar to Fig. 3, with the registering wheels and their mountlng plate omitted.

Fig. 5 is a section on line 5-5 of Fig. 2.

Fig. 6 is a section on line 66 of Fig. 5.

gig. 7 is a bottom view of the padlock, an

Figs. 8 and 9 are details, as hereinafter described.

Referring to the drawing, I have shown my improvements as applied to a padlock having a case 10, and a sliding shackle 11. The padlock selected for illustration is of the general type set forth in Patent No. 729,792, grantedto Sargent & Company, on June 2, 1903, as assignee of Albert A. Page, the sliding shackle 11 being secured and released by pin tumbler lock mechanism including a case 12, a key plug 13, an operator 14: on the key plug, and a dog or bolt 15 actuated by said operator, and adapted to lock and release the shackle. I have not considered it necessary to illustrate the pin tumbler mechanism in detail, or the means for securing such mechanism in the case 10 of the padlock. The pin tumbler lock is carried by a face plate, or bottom plate, 16, and is adapted to be inserted in the case 10 from the bottom, as is usual in devices of this type. r In accordance with my present invention, the registering mechanism is actuated directly by the shackle 11, and by preference by a closing movement thereof. In the form shown, the longer end 11 of the shackle is utilized for this purpose, being adapted to actuate a sliding pin 17, connected with the operating lever 18 of a suitable registering mechanism. The end or leg 11 of the shackle is guided in an approximately cylindrical socket 19, and is acted 011 within said socket by the customary spring 19, which normally urges the shackle into its outward or open position, as shown in Fig. 4. The socket 19 is'provided with a longitudinal slot 20, through which the pin 17 projects and in which it is guided lengthwise of the slot. This pin 17 projects laterally from a ring 21 surrounding the lower extremity 22 of the shackle portion 11 and immediately beneath a shoulder 23. As the shackle is pushed downward in the socket 19, the shoulder pushes the ring downward, and thereby causes the pin 17 to travel from the upper end of slot 20 (Fig. 1) to the lower end thereof (Fig. 3).

The registering or counting mechanism which T have selected for illustration comprises a number of wheels or dials mounted on a movement plate 24, having a slot 20 in line with the slot 20. The pin 17 projects through the slot 2O into engagement with a slot 17 a in the end of the lever 18 (Fig. 6), which lever is mounted on the front face of the movement plate. The plate may be secured in position in the case in any appropriate manner, which it is not necessary to refer to in detail. It will be seen from Fig. 8 that said plate extends over one face of the pin tumbler lock case. The lever 18 carries at its front face a spring pawl 25, adapted to engage successively the teeth 26 on the back of a unit number wheel or dial 27. As the pin 17 and lever 18 are moved downward by the closing movement of the shackle 11, the wheel or dial 27 is moved in a clockwise direction (Fig. 3) to the extent of one tooth. When the shackleis again released, and the pin 17 and arm 18 move upward, the movement of the dial 527 in the reverse direction is, prevented by a check spring 28, likewise cooperating with the teeth 26. The dial 27 is provided with suitable numbers on its front face, adapted to be read through a sight opening 29 in the front wall of the padlock case. The tens wheel, or dial, is indicated at 30, and it is provided at its rear surface with teeth 31, adapted to cooperate in the usual manner with a radial carrying tooth 32 on the unit dial'or wheel. The hundreds wheel or dial is indicated at 33, and it is provided with a peripheral teeth 34, adapted to cooperate in an obvious manner with a radial carrying tooth 35 on the tens wheel. The numerals on the tens wheel 30 are visible through a sight opening 35 in the front wall of the padlock case, .and the numerals on the hundreds wheel 33 are visible in a similar way through an opening 36. A check spring 37 intermittently engages the teeth 31 on the tens wheel 30 to prevent backward movement, and a somewhat similar check spring 38 cooperates with the teeth 3-1 of the hundreds wheel.

The operation of the padlock will be obvious for the most part from the foregoing description. Supposing that the parts are in the position shown in Fig. 1, with the number 675 appearing on the face of the padlock, the downward movement of the shackle, incident to theclosing of the same, will cause the pin 17 to actuate the lever 18, and aetuatethe dial 27. Hence, when the shackle has been closed, the number 675 will appear through the sight openings. The connection of the pin 17 with the shackle by means of the ring 21, and shoulder 23, permits the shackle to turn relatively to the pin, as required by the opening of the padlock, while maintaining such engagement between the parts that the pin will always move-downward with the shackle. The lower surface of the ring 21 serves as an abutment for the shackle projecting spring 19, and hence the tendency of such spring is to move the pin 17 upwardly with the shackle. By the arrangement described, the pin 17 partakes of the upward and downward movements of the shackle without partaking of the turning movements thereof.

The face plate 16, which incloses the lock mechanism in the padlock case, also holds the registering mechanism in the case, said registering mechanism being interposed between the lock mechanism and a side wall of the case or shell. In the particular form shown, the lock mechanism, which is of the pin tumbler type, is fixed to the face plate 16 and the registering mechanism is mounted on a plate interposed between one face of the pin tumbler casing and the opposing wall of the padlock case or shell.

I have not attempted to illustrate or describe the numerous modifications of the device which may be adopted within the scope of the claims.

lVhat I claim is:

1. In a padlock, the combination of a case or shell open at one end, a shackle secured to the case at the other end, locking mechanism for said shackle located in the case, registering mechanism for registering the actuations of the shackle located in said case and connected with the shackle, and a face plate for closing the open end of the case and confining both the locking mechanism and the registering mechanism therein, said locking and registering mechanism being removable from the case as a unit; substantially as described.

2. In a. padlock, the combination of a case or shell open at one end, a shackle sccured to said case or shell at the opposite end, pin tumbler lock mechanism for said shackle mounted in said case, registering mechanism for registering the actuations of said shackle interposed between the pin tumbler lock mechanism and one side wall of the case and connected with said shackle, and a. face plate for closing the open end. of the padlock case or shell, and for holding both the lock mechanism and the registering mechanism therein and permitting the removal thereof as a unit; substantially as described.

3. In a padlock, the combination with a case or shell open at one end, a shackle secured to said case or shell at the opposite end, pin tumbler lock mechanism, coiiperating with said shackle and located within the shell, said lock mechanism carrying a ri id face plate permanently connected thereto for closing the open end of the shell, and registering mechanism for registering actuations of the padlock having a supporting plate confined within the shell and fixed to said face plate to be movable therewith 4-. In a padlock, the combination of a vcase or shell open at one end, a shackle secured to said case or shell at the opposite end, lock mechanism in said shell cooperating with said shackle, registering mecha nism for registering the 'actuations of the padlock, includinga plate and a plurality of number wheels thereon, and a face. plate for closing the open end of said padlock shell, and for retaining said lock mechanism and registering mechanism in said shell and permitting the removal of the registering and locking mechanism from the case together; substantially as described.

5.1n a padlock, the combination of a case or shell open at one end, a shackle secured to said shell at the opposite end, a pin tumbler lock mechanism cooperating with said shackle within said case and carrying a rigid face plate. adapted to close the open end of the shell, registering mechanism for registering the actuations of the padlock, including a plate retained in said shell by means of said face plate, said first mentioned plate being removable from the case with the face plate, and interposed be tween said lockmechanism and the opposing Wall of the shell, said registering mechanism also including a plurality of number wheels mounted on said plate, and means for operatively connecting one of said number wheels with said shackle; substantially as described.

6. In a padlock, the combination of a shell open at one end, a sliding shackle secured to the shell at the opposite end, pin tumbler lock mechanism coiiperating with said shackle within the case, and ca rying a rigid face plate closing the open end of the shell, a plate retained in said shell by means of said face plate, and interposed between one side of the pin tumbler lock mechanism and the opposing side wall of the shell, a plurality of number wheels mounted on said plate and visible through the wall of the shell, said plate being removable from the shell with the face plate, and means for operatively connecting one of said number Wheels with one leg of said sliding shackle; substantially as described.

7. In a padlock, the combination of a case or shell, a sliding shackle secured thereto, said shackle including a long lg and a short leg, and being adapted to turn on the long leg as an axis, locking means for said shackle mounted in said shell, and

registering mechanism mounted in said shell and operatively connected with the longer leg of said shackle, irrespective of the turning movement of the latter; sub stantially as described.

8. In a padlock, the combination of a shell or case open at one end, a shackle scoured to said shell at the other end, locking mechanism for the shackle housed in the case, a plate supported between said locking mechanism and one wall of the case, a plurality of registering number wheels mounted on said plate, means for operating said wheels to register the actuations of the padlock, and a plate closing the open end of the padlock shell and holding said lock mechanism and said registering mechanism in a fixed position in the shell. the locking and registering mechanisms being removable from closure plate; substantially as described.

9. In a padlock, the combination. of a case, a sliding shackle connected with said case and having a short leg and a long log, a socket in the case in which said long leg of the shackle is guided, means in the case for locking and releasing the shackle, a pin connected with the long leg of the shackle, and guided in a slot in said socket, a plate mounted in the case adjacent said socket, a plurality of registering wheels mounted on said plate, and means for operativcly connecting one of said whee s with said pin so that the registering mechanism is actuated by the movement of the shackle; substantially as described.

10. In a padlock, the combination with a sliding shackle, and a socket therefor, of a pin movable with said shackle and projecting laterally through a slot disposed within the wall of the socket, registering mecha nism actuated by said pin, locking mechanism for the shackle, the said registering mechanism being actuated by the pin upon a movement of the shackle.

11. In a padlock, the combination with a sliding shackle, of locking mechanism therefor, a registering mechanism for the shackle, a member to actuate said registering mechanism movable lengthwise with said shackle but with respect to which the shackle is free to turn independently, the registering mechanism including a registering dial lying parallel and along one side of the locking mechanism.

12. In a padlock, the combination with a shackle, having a shoulder, a ring surrounding the shackle and lying adjacent said shoulder, said ring being provided with a pin portion, a resilient member acting upon the shackle and the ring, means for guiding the pin, and registering mechanism being actuated by said pin upon a sliding movement of the shackle, substantially as described.

18. In a padlock, the combination of a case or shell open at one end, a shackle secured to the shell at the opposite end, a pin tumbler lock for said shackle located in said shell, a face or end plate for closing the open end of said shell secured to said pin tumbler lock, the shell having an enlargement at one side, and a registering counter operatively connected with the shackle and comprising a'base plate supported'by said face or end plate in the enlargement of the shell in the space between one side face of the pin tumbler lock and the opposing wall of the shell; substantially as described.

14. In a padlock, the combination of a case or shell open at one end thereof, a sliding shackle mounted in the case and projecting out of the other end thereof, pin tumbler lock mechanism in the case for locking and releasing said shackle, said lock mechanism having a face plate closing the open end of the shell, a base plate interposed between said lock mechanism and the opposing wall of the shell and engaging said face plate so as to be supported thereby, a plurality of number wheels mounted on said base plate, and means for operatively connecting said number Wheels with one of the legs of the shackle; substantially as described.

15. In a padlock, the combination of a case or shell open at one end, a shackle secured to the shell at the opposite end, a pin tumbler lock located in said shell, a face plate for closing the open end of said shell rigidly secured to said pin tumbler lock and projecting laterally therefrom, a base plate engaging and supported by the laterally projecting portion of said face plate and housed in an enlarged portion of said case or shell between one wall of said case or shell and the opposing wall of said pin tumbler lock, a plurality of number wheels supported on said base plate, and means for operating said number wheels by the actuation of the padlock, said case or shell cut away so that said number wheels are visible; substantially as described.

16. In a padlock, the combination with a sliding shackle and a socket therefor, of a pin movable with said shackle and projecting through a slot disposed within the wall of the socket, resilient means maintaining said pin in position, and registering mechanism associated with the padlock and adapted to be actuated at a predetermined time by the movement of the pin on said shackle.

17. In a padlock, the combination with a sliding shackle having a long and short log, a casing therefor, means within the casing for locking said shackle, registering mechanism mounted within said casing and visible at all times through an opening therein operatively associated with the longer leg of the shackle and actuated thereby upon a sliding movement thereof.

In witness whereof, I have hereunto set my hand on the 26th day of March, 1914-.

c EVAN J. SHIPMAN. lVitnesses R. C. TERRELL,

W. J. BELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

